Lock



A. CASALIS Aug. 13, 1968 LOCK Filed Sept. 9, 1966 INVENTOR' AlfredCASALIS ATTORNEY United States Patent 3,396,550 LGCK Alfred Casalis, 10Rue de lEst, Moun'er, Switzerland Filed Sept. 9, 1966, Ser. No. 578,3371 Claim. (Cl. 70-134) The object of this invention is a lock of the typecomprising a sliding bolt with vertically movable comb, loaded by alever and a vertically movable part, the lever and the part actingsolely through their own weight. It is an improvement of the lock of mymain patent.

In the locks of this known type the bolt can make illtirned movementsstarting from one or the other of its extreme positions. In case of suchmovements, the finger of a cylinder which can be actuated by a key, canno longer influence the bolt in either direction.

According to the present invention the bolt carries a pin, in contactswith a part formed as a cam and having a vertically movable part, insuch a way that the bolt is prevented from making ill-timed movementsstarting from either of its extreme positions.

The enclosed drawing illustrates, as an example, one embodiment of thelock according to the invention.

The only figure is a side view of the lock, without the covering plate.

In the lock of the invention, the locking bolt 1 is moved by the finger5 of a cylinder which can be actuated by a key, this finger acting on acomb 3 located in the fore ground during the opening and closing, thecomb being drawn in dot-and-dash lines in order to show the otherwiseparts hidden. This comb 3, guided for vertical movement by the pins 6and 7, is constantly loaded by a lever 2 pivotally mounted on the pin 6and by a part 4 guided for vertical movement and supported by the lever2. The parts 2 and 4 act solely by gravity, under their own weight, theaction of the weight of the part 4 being increased by the lever 2 due tothe fact that it is supported by the end of lever 2 most remote from thepivot 6.

According to the present invention the bolt 1 carries a pin 8,cooperating with a member for the control of the lock pin movementshaving a part 9a acting as a cam and having a part 9 guided by the pin 6and the pin 10 in order to be vertically movable. Part 9a is formed witha slot 11 having an inclined portion 11a of which the part 11b isparallel to the direction of movement of the bolt 1 and adjacent to thepractically vertical edge 12.

When the bolt 1 is in its retracted position, the pin 8 is at the upperend of the inclined portion 11a of the slot 11. The bolt can hence notmove without lifting the part 9; it is therefore prevented from makingill-timed movements, as a result of which the finger 5 would hit thehorizontal edge 13 of the bolt instead of penetrating in the entry 14for action on its edge 15.

3,396,560 Patented Aug. 13, 1968 When the bolt 1 is pushed towards itsactive position, the pin 8 slides in the slot 11 while lifting the part9 which falls back as soon as the bolt approaches its active position.In this latter position, the pin 8 prevents any illtimed movement as aconsequence of the bolt 1 towards the left by hitting the upper end ofthe inclined part 11a of the slot 11; a movement towards the right isprevented as usual by the pin 7.

While turning the cylinder with the finger 5 in counterclockwisedirection the finger 5 acts first on the edge 17 of part 9 in order tolift it to liberate the way for the pin 8; the finger 5 then penetratesas usual in the entry 14 and then acts on the edge 16 for retracting thebolt 1.

The notch 18 of the part 9 has a shape such that a pin 19 fixed on therear part of the bolt 1 can slide on the base plate of the lock withouthindering the part 9 in its movements.

As an alternative, the slot 11 could be V- or U-shaped, the pin 8 thenacting in the active position of the bolt the same way as in theretracted position.

I claim:

1. In a lock having a laterally displaceable lock bolt terminated with alocking end, the combination comprising:

(a) key operated means including an actuating pin ,cooperable with saidlock bolt to move it laterally in both directions;

(b) a control member for said lock bolt, said member having a front edgeand formed with an upward inclined, rearwardly directed slot opening atsaid front edge;

(e) means guiding said control member to allow vertical movement only;

(d) said control member having a lower edge disposed to be engaged bysaid actuating pin for vertical displacement of said control member, and

(e) a control pin on said lock bolt projecting therefrom in thedirection of said control member, so constructed and arranged that saidcontrol pin stands to abut said control member front edge in oneposition of said lock bolt, engages into said slot upon lifting of saidcontrol member and displacement of said lock bolt by said actuating pinand lies at the inner end of said slot when said lock bolt reaches asecond position.

References Cited FOREIGN PATENTS 806,283 12/ 1958 Great Britain. 169,3947/ 1906 Germany. 180,903 9/ 1962 Sweden.

MARVIN A. CHAMPION, Primary Examiner.

EDWARD J. MCCARTHY, Assistant Examiner.

1. IN A LOCK HAVING A LATERALLY DISPLACEABLE LOCK BOLT TERMINATED WITH ALOCKING END, THE COMBINATION COMPRISING: (A) KEY OPERATED MEANSINCLUDING AN ACTUATING PIN COOPERABLE WITH SAID LOCK BOLT TO MOVE ITLATERALLY IN BOTH DIRECTIONS; (B) A CONTROL MEMBER FOR SAID LOCK BOLT,SAID MEMBER HAVING A FRONT EDGE AND FORMED WITH AN UPWARD INCLINED,REARWARDLY DIRECTED SLOT OPENING AT SAID FRONT EDGE; (C) MEANS GUIDINGSAID CONTROL MEMBER TO ALLOW VERTICAL MOVEMENT ONLY; (D) SAID CONTROLMEMBER HAVING A LOWER EDGE DISPOSED TO BE ENGAGED BY SAID ACTUATING PINFOR VERTICAL DISPLACEMENT OF SAID CONTROL MEMBER, AND